The Working Principle Ultrasonic Transmitter & its advantages

The Working Principle Ultrasonic Transmitter & its advantages. Ultrasonic level transmitters are utilized for level measuring in numerous water applications.

We at Xi’an Kacise Optronics Co., Ltd, bring the latest technologies into the market through our advanced ultrasonic transmitter. So many applications involving measurement of the water level favor our non-contact level ultrasonic transmitters.

Our ultrasonic level transmitters are preferred for different level measurement applications. You can use it on water treatment plants, rainwater harvesting basins, dams, canals, wastewater treatment plants, etc.

It is not only a suitable but economical, and beneficial part of an efficient and safe wastewater treatment plant. It should not be ignored when selecting instruments for level measurement.

It is less expensive & more effective than any other water level measurement technology. 

The Working Principle Ultrasonic Transmitter & its advantages

The Working Principle Ultrasonic Transmitter & its advantages

Our ultrasonic transmitter-level devices can be found online & in nearly every market. Accuracy, Price point, Durability,

Ease of use, and industry standard are the reasons why our ultrasonic transmitters continue to be the for many applications.

We are one of the leading providers of ultrasonic transmitter measurement technology. We offer a wide selection of user-friendly & highly reliable ultrasonic transmitters to a broad portfolio of controllers, and a range of transducers.

It is accepted by the clients from America, Canada, Italia, German, South African and other Middle Eastern countries. We work with the motto of doing best for our local & global clients.

How it calculates the distance

The length of wave travel is converted into a measurement of the level in the tank by our ultrasonic level transmitter. It is attached to the tank’s top and sends an ultrasonic transmitter pulse into the tank.

The liquid surface reflects this pulse to the transmitter as it moves at the speed of sound. The time it takes for the bursts to descend to the reflecting surface and return is measured by our ultrasonic-level transmitter.

This time can be used to calculate the level of fluid in the tank because it is proportional to the distance from the transducer to the surface.

The onboard computer of the ultrasonic transmitter determines the distance to the liquid surface by measuring the lag time between the emitted and received echo signals.

This basic principle lies at the heart of the ultrasonic measurement technology and is determined in the equation Distance = ( Speed of sound in air x time delay) / 2

The transmitter’s microcontroller will calculate the liquid level once it has been configured with the application’s bottom reference, which is typically the bottom of the tank. The fundamental formula for determining the tank’s level is Level = Tank Height – Distance

Elements and Basic Concept of Ultrasonic Level Measurement

Minimum measuring distance (Xm): The “Dead Band” or minimum measuring distance (Xm) is a characteristic shared by all ultrasonic level transmitters. The ultrasonic gadget cannot measure within this small area in front of the sensor.

Maximum measuring distance (XM): The largest area that the transmitter gadget can measure in optimum conditions. Beyond this point, no measurement is feasible.

Our ultrasonic transmitter is a non-contact device available in models that can convert readings into 4–20 mA outputs to DCSs, PLCs, or other remote systems. The frequency range of our ultrasonic level transmitter is 15…200 kHz.

The more challenging applications require lower-frequency instruments. You can use our ultrasonic transmitter for longer distances and solid-level measurements. It is also good for shorter liquid level measurements as well. 


  1. Installing ultrasonic transmitters on liquid-filled or empty tanks is simple.
  2. Set-up is simple, and those devices with onboard programming capability can be configured in minutes.
  3. As there is no contact with the media and no moving parts, the devices are virtually maintenance-free. Wetted materials are typically made of an inert fluoropolymer and are impervious to corrosion caused by vapour condensation.
  4. Because the device is non-contacting, the level measurement is unaffected by changes in the liquid density, dielectric, or viscosity, and performs well on aqueous liquids and many chemicals.
  5. Changes in process temperature will change the speed of the ultrasonic pulse through the space above the liquid, but built-in temperature compensation automatically corrects this.
  6. Changes in process pressure do not affect the measurement.

We are an ISO9001-certified company with complete solutions for numerous water quality analysis instruments, and sensors, which can be seamlessly integrated with your project.

Call us now to know more about our ultrasonic transmitter product range. 

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